TNY277PN0152

Tiny Switch-III incorporates a 700 V power MOSFET, oscillator, high voltage switched current source, current limit (user selectable) and thermal shutdown circuitry. The IC family uses an ON/OFF control scheme and offers a design flexible solution with a low system cost and extended power capability.

• Lowest System Cost with Enhanced Flexibility
  • Simple ON/OFF control, no loop compensation needed
  • Selectable current limit through BP/M capacitor value
  • Higher current limit extends peak power or, in open frame applications, maximum continuous power
  • Lower current limit improves efficiency in enclosed adapters/chargers
  • Allows optimum Tiny Switch-III choice by swapping devices with no other circuit redesign
  • Tight I² f parameter tolerance reduces system cost
  • Maximizes MOSFET and magnetic power delivery
  • Minimizes max overload power, reducing cost of transformer, primary clamp and secondary components
  • ON-time extension-extends low line regulation range/hold-up time to reduce input bulk capacitance
  • Self-biased: no bias winding or bias components
  • Frequency jittering reduces EMI filter costs
  • Pin-out simplifies heat sinking to the PCB
  • SOURCE pins are electrically quiet for low EMI
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